[Managed Session] Whitelist VMware Horizon Client for Chrome in MGS

From an email discussion:

marcuskoehler: May I ask you to add ppkfnjlimknmjoaemnpidmdlfchhehel to
the MGS whitelist so that it doesn't cause the full warning?

TBR=mnissler@chromium.org

Change-Id: I1c98cdc3318475a04c7e342897dd1009bd595079
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1716744
Commit-Queue: Ivan Šandrk <isandrk@chromium.org>
Reviewed-by: Ivan Šandrk <isandrk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#680377}

extensions/browser/device_local_account_util.cc

@@ -26,6 +26,9 @@ const char* const kPublicSessionWhitelist[] = {
     "haeblkpifdemlfnkogkipmghfcbonief",  // Charismathics Smart Card Middleware
     "mpnkhdpphjiihmlmkcamhpogecnnfffa",  // Service NSW Kiosk Utility
     "npilppbicblkkgjfnbmibmhhgjhobpll",  // QwickACCESS
+    // TODO(isandrk): Only on the whitelist for the purpose of getting the soft MGS warning.  Remove
+    // once dynamic MGS warnings are implemented.
+    "ppkfnjlimknmjoaemnpidmdlfchhehel",  // VMware Horizon Client for Chrome
 
     // Libraries:
     "aclofikceldphonlfmghmimkodjdmhck",  // Ancoris login component